Installation of B&D Instruments & Avionics, Inc. Electronic Engine Oil Pressure/Temperature Indicator. Data required: (1) for the Model SF340A, B&D Instruments & Avionics, Inc. Installation Manual Part No. 7380-003-024, dated January 23, 1989, or later “FAA Approved” revision; (2) for the Model SF340B, B&D Instruments and Avionics, Inc. Installation Manual Part No. 7380-003-024, dated August 29, 1989, or later “FAA Approved” revision; and (3) copy of this certificate.

Engine air-intake duct modification.

Installation of B&D Instruments & Avionics, Inc. Electronic Propeller Gear Box Oil Pressure/Temperature Indicator. Data required: (1) for the Model SF340A, B&D Instruments & Avionics, Inc. Installation Manual Part No. 7330-003-011, dated January 23, 1989, or later “FAA Approved” revision; (2) for the Model SF340B, B&D Instruments and Avionics, Inc. Installation Manual Part No. 7330-003-011, Revision B, dated August 29, 1989, or later “FAA Approved” revision; and (3) copy of this certificate.

Engine air intake duct modification.

Remove existing starter-generators and install APC starter-generator P/N 400SG112Q.

Installation of Garrett Model GTCP46-150(W) auxiliary power unit, operating as a non-essential electrical and bleed air source for on board electrical and environmental systems.

Installation of GE CT7-5A2 engines.

Installation of retrofit engine inlet icing protective system.

Replacement of high maintenance open terminal with a closed switching assembly for the engine anti-icing sensor.